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Diffstat (limited to 'media/libaom/src/av1/common/arm/convolve_neon.c')
-rw-r--r--media/libaom/src/av1/common/arm/convolve_neon.c1455
1 files changed, 1455 insertions, 0 deletions
diff --git a/media/libaom/src/av1/common/arm/convolve_neon.c b/media/libaom/src/av1/common/arm/convolve_neon.c
new file mode 100644
index 000000000..d0c4f8ff6
--- /dev/null
+++ b/media/libaom/src/av1/common/arm/convolve_neon.c
@@ -0,0 +1,1455 @@
+/*
+ *
+ * Copyright (c) 2018, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include <assert.h>
+#include <arm_neon.h>
+
+#include "config/av1_rtcd.h"
+
+#include "aom_dsp/aom_dsp_common.h"
+#include "aom_ports/mem.h"
+#include "av1/common/convolve.h"
+#include "av1/common/filter.h"
+#include "av1/common/arm/convolve_neon.h"
+#include "av1/common/arm/mem_neon.h"
+#include "av1/common/arm/transpose_neon.h"
+
+static INLINE int16x4_t convolve8_4x4(const int16x4_t s0, const int16x4_t s1,
+ const int16x4_t s2, const int16x4_t s3,
+ const int16x4_t s4, const int16x4_t s5,
+ const int16x4_t s6, const int16x4_t s7,
+ const int16_t *filter) {
+ int16x4_t sum;
+
+ sum = vmul_n_s16(s0, filter[0]);
+ sum = vmla_n_s16(sum, s1, filter[1]);
+ sum = vmla_n_s16(sum, s2, filter[2]);
+ sum = vmla_n_s16(sum, s5, filter[5]);
+ sum = vmla_n_s16(sum, s6, filter[6]);
+ sum = vmla_n_s16(sum, s7, filter[7]);
+ /* filter[3] can take a max value of 128. So the max value of the result :
+ * 128*255 + sum > 16 bits
+ */
+ sum = vqadd_s16(sum, vmul_n_s16(s3, filter[3]));
+ sum = vqadd_s16(sum, vmul_n_s16(s4, filter[4]));
+
+ return sum;
+}
+
+static INLINE uint8x8_t convolve8_horiz_8x8(
+ const int16x8_t s0, const int16x8_t s1, const int16x8_t s2,
+ const int16x8_t s3, const int16x8_t s4, const int16x8_t s5,
+ const int16x8_t s6, const int16x8_t s7, const int16_t *filter,
+ const int16x8_t shift_round_0, const int16x8_t shift_by_bits) {
+ int16x8_t sum;
+
+ sum = vmulq_n_s16(s0, filter[0]);
+ sum = vmlaq_n_s16(sum, s1, filter[1]);
+ sum = vmlaq_n_s16(sum, s2, filter[2]);
+ sum = vmlaq_n_s16(sum, s5, filter[5]);
+ sum = vmlaq_n_s16(sum, s6, filter[6]);
+ sum = vmlaq_n_s16(sum, s7, filter[7]);
+ /* filter[3] can take a max value of 128. So the max value of the result :
+ * 128*255 + sum > 16 bits
+ */
+ sum = vqaddq_s16(sum, vmulq_n_s16(s3, filter[3]));
+ sum = vqaddq_s16(sum, vmulq_n_s16(s4, filter[4]));
+
+ sum = vqrshlq_s16(sum, shift_round_0);
+ sum = vqrshlq_s16(sum, shift_by_bits);
+
+ return vqmovun_s16(sum);
+}
+
+#if !defined(__aarch64__)
+static INLINE uint8x8_t convolve8_horiz_4x1(
+ const int16x4_t s0, const int16x4_t s1, const int16x4_t s2,
+ const int16x4_t s3, const int16x4_t s4, const int16x4_t s5,
+ const int16x4_t s6, const int16x4_t s7, const int16_t *filter,
+ const int16x4_t shift_round_0, const int16x4_t shift_by_bits) {
+ int16x4_t sum;
+
+ sum = vmul_n_s16(s0, filter[0]);
+ sum = vmla_n_s16(sum, s1, filter[1]);
+ sum = vmla_n_s16(sum, s2, filter[2]);
+ sum = vmla_n_s16(sum, s5, filter[5]);
+ sum = vmla_n_s16(sum, s6, filter[6]);
+ sum = vmla_n_s16(sum, s7, filter[7]);
+ /* filter[3] can take a max value of 128. So the max value of the result :
+ * 128*255 + sum > 16 bits
+ */
+ sum = vqadd_s16(sum, vmul_n_s16(s3, filter[3]));
+ sum = vqadd_s16(sum, vmul_n_s16(s4, filter[4]));
+
+ sum = vqrshl_s16(sum, shift_round_0);
+ sum = vqrshl_s16(sum, shift_by_bits);
+
+ return vqmovun_s16(vcombine_s16(sum, sum));
+}
+#endif // !defined(__arch64__)
+
+static INLINE uint8x8_t convolve8_vert_8x4(
+ const int16x8_t s0, const int16x8_t s1, const int16x8_t s2,
+ const int16x8_t s3, const int16x8_t s4, const int16x8_t s5,
+ const int16x8_t s6, const int16x8_t s7, const int16_t *filter) {
+ int16x8_t sum;
+
+ sum = vmulq_n_s16(s0, filter[0]);
+ sum = vmlaq_n_s16(sum, s1, filter[1]);
+ sum = vmlaq_n_s16(sum, s2, filter[2]);
+ sum = vmlaq_n_s16(sum, s5, filter[5]);
+ sum = vmlaq_n_s16(sum, s6, filter[6]);
+ sum = vmlaq_n_s16(sum, s7, filter[7]);
+ /* filter[3] can take a max value of 128. So the max value of the result :
+ * 128*255 + sum > 16 bits
+ */
+ sum = vqaddq_s16(sum, vmulq_n_s16(s3, filter[3]));
+ sum = vqaddq_s16(sum, vmulq_n_s16(s4, filter[4]));
+
+ return vqrshrun_n_s16(sum, FILTER_BITS);
+}
+
+static INLINE uint16x4_t convolve8_vert_4x4_s32(
+ const int16x4_t s0, const int16x4_t s1, const int16x4_t s2,
+ const int16x4_t s3, const int16x4_t s4, const int16x4_t s5,
+ const int16x4_t s6, const int16x4_t s7, const int16_t *y_filter,
+ const int32x4_t round_shift_vec, const int32x4_t offset_const,
+ const int32x4_t sub_const_vec) {
+ int32x4_t sum0;
+ uint16x4_t res;
+ const int32x4_t zero = vdupq_n_s32(0);
+
+ sum0 = vmull_n_s16(s0, y_filter[0]);
+ sum0 = vmlal_n_s16(sum0, s1, y_filter[1]);
+ sum0 = vmlal_n_s16(sum0, s2, y_filter[2]);
+ sum0 = vmlal_n_s16(sum0, s3, y_filter[3]);
+ sum0 = vmlal_n_s16(sum0, s4, y_filter[4]);
+ sum0 = vmlal_n_s16(sum0, s5, y_filter[5]);
+ sum0 = vmlal_n_s16(sum0, s6, y_filter[6]);
+ sum0 = vmlal_n_s16(sum0, s7, y_filter[7]);
+
+ sum0 = vaddq_s32(sum0, offset_const);
+ sum0 = vqrshlq_s32(sum0, round_shift_vec);
+ sum0 = vsubq_s32(sum0, sub_const_vec);
+ sum0 = vmaxq_s32(sum0, zero);
+
+ res = vmovn_u32(vreinterpretq_u32_s32(sum0));
+
+ return res;
+}
+
+static INLINE uint8x8_t convolve8_vert_8x4_s32(
+ const int16x8_t s0, const int16x8_t s1, const int16x8_t s2,
+ const int16x8_t s3, const int16x8_t s4, const int16x8_t s5,
+ const int16x8_t s6, const int16x8_t s7, const int16_t *y_filter,
+ const int32x4_t round_shift_vec, const int32x4_t offset_const,
+ const int32x4_t sub_const_vec, const int16x8_t vec_round_bits) {
+ int32x4_t sum0, sum1;
+ uint16x8_t res;
+ const int32x4_t zero = vdupq_n_s32(0);
+
+ sum0 = vmull_n_s16(vget_low_s16(s0), y_filter[0]);
+ sum0 = vmlal_n_s16(sum0, vget_low_s16(s1), y_filter[1]);
+ sum0 = vmlal_n_s16(sum0, vget_low_s16(s2), y_filter[2]);
+ sum0 = vmlal_n_s16(sum0, vget_low_s16(s3), y_filter[3]);
+ sum0 = vmlal_n_s16(sum0, vget_low_s16(s4), y_filter[4]);
+ sum0 = vmlal_n_s16(sum0, vget_low_s16(s5), y_filter[5]);
+ sum0 = vmlal_n_s16(sum0, vget_low_s16(s6), y_filter[6]);
+ sum0 = vmlal_n_s16(sum0, vget_low_s16(s7), y_filter[7]);
+
+ sum1 = vmull_n_s16(vget_high_s16(s0), y_filter[0]);
+ sum1 = vmlal_n_s16(sum1, vget_high_s16(s1), y_filter[1]);
+ sum1 = vmlal_n_s16(sum1, vget_high_s16(s2), y_filter[2]);
+ sum1 = vmlal_n_s16(sum1, vget_high_s16(s3), y_filter[3]);
+ sum1 = vmlal_n_s16(sum1, vget_high_s16(s4), y_filter[4]);
+ sum1 = vmlal_n_s16(sum1, vget_high_s16(s5), y_filter[5]);
+ sum1 = vmlal_n_s16(sum1, vget_high_s16(s6), y_filter[6]);
+ sum1 = vmlal_n_s16(sum1, vget_high_s16(s7), y_filter[7]);
+
+ sum0 = vaddq_s32(sum0, offset_const);
+ sum1 = vaddq_s32(sum1, offset_const);
+ sum0 = vqrshlq_s32(sum0, round_shift_vec);
+ sum1 = vqrshlq_s32(sum1, round_shift_vec);
+ sum0 = vsubq_s32(sum0, sub_const_vec);
+ sum1 = vsubq_s32(sum1, sub_const_vec);
+ sum0 = vmaxq_s32(sum0, zero);
+ sum1 = vmaxq_s32(sum1, zero);
+ res = vcombine_u16(vqmovn_u32(vreinterpretq_u32_s32(sum0)),
+ vqmovn_u32(vreinterpretq_u32_s32(sum1)));
+
+ res = vqrshlq_u16(res, vec_round_bits);
+
+ return vqmovn_u16(res);
+}
+
+void av1_convolve_x_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst,
+ int dst_stride, int w, int h,
+ const InterpFilterParams *filter_params_x,
+ const InterpFilterParams *filter_params_y,
+ const int subpel_x_q4, const int subpel_y_q4,
+ ConvolveParams *conv_params) {
+ const uint8_t horiz_offset = filter_params_x->taps / 2 - 1;
+ const int8_t bits = FILTER_BITS - conv_params->round_0;
+
+ (void)subpel_y_q4;
+ (void)conv_params;
+ (void)filter_params_y;
+
+ uint8x8_t t0;
+#if defined(__aarch64__)
+ uint8x8_t t1, t2, t3;
+#endif
+
+ assert(bits >= 0);
+ assert((FILTER_BITS - conv_params->round_1) >= 0 ||
+ ((conv_params->round_0 + conv_params->round_1) == 2 * FILTER_BITS));
+
+ const int16_t *x_filter = av1_get_interp_filter_subpel_kernel(
+ filter_params_x, subpel_x_q4 & SUBPEL_MASK);
+
+ const int16x8_t shift_round_0 = vdupq_n_s16(-conv_params->round_0);
+ const int16x8_t shift_by_bits = vdupq_n_s16(-bits);
+
+ src -= horiz_offset;
+#if defined(__aarch64__)
+ if (h == 4) {
+ uint8x8_t d01, d23;
+ int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, d0, d1, d2, d3;
+ int16x8_t d01_temp, d23_temp;
+
+ __builtin_prefetch(src + 0 * src_stride);
+ __builtin_prefetch(src + 1 * src_stride);
+ __builtin_prefetch(src + 2 * src_stride);
+ __builtin_prefetch(src + 3 * src_stride);
+
+ load_u8_8x4(src, src_stride, &t0, &t1, &t2, &t3);
+ transpose_u8_8x4(&t0, &t1, &t2, &t3);
+
+ s0 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0)));
+ s1 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1)));
+ s2 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2)));
+ s3 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3)));
+ s4 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t0)));
+ s5 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t1)));
+ s6 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t2)));
+ __builtin_prefetch(dst + 0 * dst_stride);
+ __builtin_prefetch(dst + 1 * dst_stride);
+ __builtin_prefetch(dst + 2 * dst_stride);
+ __builtin_prefetch(dst + 3 * dst_stride);
+ src += 7;
+
+ do {
+ load_u8_8x4(src, src_stride, &t0, &t1, &t2, &t3);
+ transpose_u8_8x4(&t0, &t1, &t2, &t3);
+
+ s7 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0)));
+ s8 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1)));
+ s9 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2)));
+ s10 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3)));
+
+ d0 = convolve8_4x4(s0, s1, s2, s3, s4, s5, s6, s7, x_filter);
+
+ d1 = convolve8_4x4(s1, s2, s3, s4, s5, s6, s7, s8, x_filter);
+
+ d2 = convolve8_4x4(s2, s3, s4, s5, s6, s7, s8, s9, x_filter);
+
+ d3 = convolve8_4x4(s3, s4, s5, s6, s7, s8, s9, s10, x_filter);
+
+ d01_temp = vqrshlq_s16(vcombine_s16(d0, d1), shift_round_0);
+ d23_temp = vqrshlq_s16(vcombine_s16(d2, d3), shift_round_0);
+
+ d01_temp = vqrshlq_s16(d01_temp, shift_by_bits);
+ d23_temp = vqrshlq_s16(d23_temp, shift_by_bits);
+
+ d01 = vqmovun_s16(d01_temp);
+ d23 = vqmovun_s16(d23_temp);
+
+ transpose_u8_4x4(&d01, &d23);
+
+ if (w != 2) {
+ vst1_lane_u32((uint32_t *)(dst + 0 * dst_stride), // 00 01 02 03
+ vreinterpret_u32_u8(d01), 0);
+ vst1_lane_u32((uint32_t *)(dst + 1 * dst_stride), // 10 11 12 13
+ vreinterpret_u32_u8(d23), 0);
+ vst1_lane_u32((uint32_t *)(dst + 2 * dst_stride), // 20 21 22 23
+ vreinterpret_u32_u8(d01), 1);
+ vst1_lane_u32((uint32_t *)(dst + 3 * dst_stride), // 30 31 32 33
+ vreinterpret_u32_u8(d23), 1);
+ } else {
+ vst1_lane_u16((uint16_t *)(dst + 0 * dst_stride), // 00 01
+ vreinterpret_u16_u8(d01), 0);
+ vst1_lane_u16((uint16_t *)(dst + 1 * dst_stride), // 10 11
+ vreinterpret_u16_u8(d23), 0);
+ vst1_lane_u16((uint16_t *)(dst + 2 * dst_stride), // 20 21
+ vreinterpret_u16_u8(d01), 2);
+ vst1_lane_u16((uint16_t *)(dst + 3 * dst_stride), // 30 31
+ vreinterpret_u16_u8(d23), 2);
+ }
+
+ s0 = s4;
+ s1 = s5;
+ s2 = s6;
+ s3 = s7;
+ s4 = s8;
+ s5 = s9;
+ s6 = s10;
+ src += 4;
+ dst += 4;
+ w -= 4;
+ } while (w > 0);
+ } else {
+#endif
+ int width;
+ const uint8_t *s;
+ int16x8_t s0, s1, s2, s3, s4, s5, s6, s7;
+
+#if defined(__aarch64__)
+ int16x8_t s8, s9, s10;
+ uint8x8_t t4, t5, t6, t7;
+#endif
+
+ if (w <= 4) {
+#if defined(__aarch64__)
+ do {
+ load_u8_8x8(src, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+ transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+ s0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ s1 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ s2 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ s3 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ s4 = vreinterpretq_s16_u16(vmovl_u8(t4));
+ s5 = vreinterpretq_s16_u16(vmovl_u8(t5));
+ s6 = vreinterpretq_s16_u16(vmovl_u8(t6));
+
+ load_u8_8x8(src + 7, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6,
+ &t7);
+ src += 8 * src_stride;
+ __builtin_prefetch(dst + 0 * dst_stride);
+ __builtin_prefetch(dst + 1 * dst_stride);
+ __builtin_prefetch(dst + 2 * dst_stride);
+ __builtin_prefetch(dst + 3 * dst_stride);
+ __builtin_prefetch(dst + 4 * dst_stride);
+ __builtin_prefetch(dst + 5 * dst_stride);
+ __builtin_prefetch(dst + 6 * dst_stride);
+ __builtin_prefetch(dst + 7 * dst_stride);
+
+ transpose_u8_4x8(&t0, &t1, &t2, &t3, t4, t5, t6, t7);
+
+ s7 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ s8 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ s9 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ s10 = vreinterpretq_s16_u16(vmovl_u8(t3));
+
+ __builtin_prefetch(src + 0 * src_stride);
+ __builtin_prefetch(src + 1 * src_stride);
+ __builtin_prefetch(src + 2 * src_stride);
+ __builtin_prefetch(src + 3 * src_stride);
+ __builtin_prefetch(src + 4 * src_stride);
+ __builtin_prefetch(src + 5 * src_stride);
+ __builtin_prefetch(src + 6 * src_stride);
+ __builtin_prefetch(src + 7 * src_stride);
+ t0 = convolve8_horiz_8x8(s0, s1, s2, s3, s4, s5, s6, s7, x_filter,
+ shift_round_0, shift_by_bits);
+ t1 = convolve8_horiz_8x8(s1, s2, s3, s4, s5, s6, s7, s8, x_filter,
+ shift_round_0, shift_by_bits);
+ t2 = convolve8_horiz_8x8(s2, s3, s4, s5, s6, s7, s8, s9, x_filter,
+ shift_round_0, shift_by_bits);
+ t3 = convolve8_horiz_8x8(s3, s4, s5, s6, s7, s8, s9, s10, x_filter,
+ shift_round_0, shift_by_bits);
+
+ transpose_u8_8x4(&t0, &t1, &t2, &t3);
+
+ if ((w == 4) && (h > 4)) {
+ vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t0),
+ 0); // 00 01 02 03
+ dst += dst_stride;
+ vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t1),
+ 0); // 10 11 12 13
+ dst += dst_stride;
+ vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t2),
+ 0); // 20 21 22 23
+ dst += dst_stride;
+ vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t3),
+ 0); // 30 31 32 33
+ dst += dst_stride;
+ vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t0),
+ 1); // 40 41 42 43
+ dst += dst_stride;
+ vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t1),
+ 1); // 50 51 52 53
+ dst += dst_stride;
+ vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t2),
+ 1); // 60 61 62 63
+ dst += dst_stride;
+ vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t3),
+ 1); // 70 71 72 73
+ dst += dst_stride;
+ } else if ((w == 4) && (h == 2)) {
+ vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t0),
+ 0); // 00 01 02 03
+ dst += dst_stride;
+ vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t1),
+ 0); // 10 11 12 13
+ dst += dst_stride;
+ } else if ((w == 2) && (h > 4)) {
+ vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(t0), 0); // 00 01
+ dst += dst_stride;
+ vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(t1), 0); // 10 11
+ dst += dst_stride;
+ vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(t2), 0); // 20 21
+ dst += dst_stride;
+ vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(t3), 0); // 30 31
+ dst += dst_stride;
+ vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(t0), 2); // 40 41
+ dst += dst_stride;
+ vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(t1), 2); // 50 51
+ dst += dst_stride;
+ vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(t2), 2); // 60 61
+ dst += dst_stride;
+ vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(t3), 2); // 70 71
+ dst += dst_stride;
+ } else if ((w == 2) && (h == 2)) {
+ vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(t0), 0); // 00 01
+ dst += dst_stride;
+ vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(t1), 0); // 10 11
+ dst += dst_stride;
+ }
+ h -= 8;
+ } while (h > 0);
+#else
+ int16x8_t tt0;
+ int16x4_t x0, x1, x2, x3, x4, x5, x6, x7;
+ const int16x4_t shift_round_0_low = vget_low_s16(shift_round_0);
+ const int16x4_t shift_by_bits_low = vget_low_s16(shift_by_bits);
+ do {
+ t0 = vld1_u8(src); // a0 a1 a2 a3 a4 a5 a6 a7
+ tt0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ x0 = vget_low_s16(tt0); // a0 a1 a2 a3
+ x4 = vget_high_s16(tt0); // a4 a5 a6 a7
+
+ t0 = vld1_u8(src + 8); // a8 a9 a10 a11 a12 a13 a14 a15
+ tt0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ x7 = vget_low_s16(tt0); // a8 a9 a10 a11
+
+ x1 = vext_s16(x0, x4, 1); // a1 a2 a3 a4
+ x2 = vext_s16(x0, x4, 2); // a2 a3 a4 a5
+ x3 = vext_s16(x0, x4, 3); // a3 a4 a5 a6
+ x5 = vext_s16(x4, x7, 1); // a5 a6 a7 a8
+ x6 = vext_s16(x4, x7, 2); // a6 a7 a8 a9
+ x7 = vext_s16(x4, x7, 3); // a7 a8 a9 a10
+
+ src += src_stride;
+
+ t0 = convolve8_horiz_4x1(x0, x1, x2, x3, x4, x5, x6, x7, x_filter,
+ shift_round_0_low, shift_by_bits_low);
+
+ if (w == 4) {
+ vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t0),
+ 0); // 00 01 02 03
+ dst += dst_stride;
+ } else if (w == 2) {
+ vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(t0), 0); // 00 01
+ dst += dst_stride;
+ }
+ h -= 1;
+ } while (h > 0);
+#endif
+ } else {
+ uint8_t *d;
+ int16x8_t s11;
+#if defined(__aarch64__)
+ int16x8_t s12, s13, s14;
+ do {
+ __builtin_prefetch(src + 0 * src_stride);
+ __builtin_prefetch(src + 1 * src_stride);
+ __builtin_prefetch(src + 2 * src_stride);
+ __builtin_prefetch(src + 3 * src_stride);
+ __builtin_prefetch(src + 4 * src_stride);
+ __builtin_prefetch(src + 5 * src_stride);
+ __builtin_prefetch(src + 6 * src_stride);
+ __builtin_prefetch(src + 7 * src_stride);
+ load_u8_8x8(src, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+ transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+ s0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ s1 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ s2 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ s3 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ s4 = vreinterpretq_s16_u16(vmovl_u8(t4));
+ s5 = vreinterpretq_s16_u16(vmovl_u8(t5));
+ s6 = vreinterpretq_s16_u16(vmovl_u8(t6));
+
+ width = w;
+ s = src + 7;
+ d = dst;
+ __builtin_prefetch(dst + 0 * dst_stride);
+ __builtin_prefetch(dst + 1 * dst_stride);
+ __builtin_prefetch(dst + 2 * dst_stride);
+ __builtin_prefetch(dst + 3 * dst_stride);
+ __builtin_prefetch(dst + 4 * dst_stride);
+ __builtin_prefetch(dst + 5 * dst_stride);
+ __builtin_prefetch(dst + 6 * dst_stride);
+ __builtin_prefetch(dst + 7 * dst_stride);
+
+ do {
+ load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+ transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+ s7 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ s8 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ s9 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ s10 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ s11 = vreinterpretq_s16_u16(vmovl_u8(t4));
+ s12 = vreinterpretq_s16_u16(vmovl_u8(t5));
+ s13 = vreinterpretq_s16_u16(vmovl_u8(t6));
+ s14 = vreinterpretq_s16_u16(vmovl_u8(t7));
+
+ t0 = convolve8_horiz_8x8(s0, s1, s2, s3, s4, s5, s6, s7, x_filter,
+ shift_round_0, shift_by_bits);
+
+ t1 = convolve8_horiz_8x8(s1, s2, s3, s4, s5, s6, s7, s8, x_filter,
+ shift_round_0, shift_by_bits);
+
+ t2 = convolve8_horiz_8x8(s2, s3, s4, s5, s6, s7, s8, s9, x_filter,
+ shift_round_0, shift_by_bits);
+
+ t3 = convolve8_horiz_8x8(s3, s4, s5, s6, s7, s8, s9, s10, x_filter,
+ shift_round_0, shift_by_bits);
+
+ t4 = convolve8_horiz_8x8(s4, s5, s6, s7, s8, s9, s10, s11, x_filter,
+ shift_round_0, shift_by_bits);
+
+ t5 = convolve8_horiz_8x8(s5, s6, s7, s8, s9, s10, s11, s12, x_filter,
+ shift_round_0, shift_by_bits);
+
+ t6 = convolve8_horiz_8x8(s6, s7, s8, s9, s10, s11, s12, s13, x_filter,
+ shift_round_0, shift_by_bits);
+
+ t7 = convolve8_horiz_8x8(s7, s8, s9, s10, s11, s12, s13, s14,
+ x_filter, shift_round_0, shift_by_bits);
+
+ transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+ if (h != 2) {
+ store_u8_8x8(d, dst_stride, t0, t1, t2, t3, t4, t5, t6, t7);
+ } else {
+ store_row2_u8_8x8(d, dst_stride, t0, t1);
+ }
+ s0 = s8;
+ s1 = s9;
+ s2 = s10;
+ s3 = s11;
+ s4 = s12;
+ s5 = s13;
+ s6 = s14;
+ s += 8;
+ d += 8;
+ width -= 8;
+ } while (width > 0);
+ src += 8 * src_stride;
+ dst += 8 * dst_stride;
+ h -= 8;
+ } while (h > 0);
+#else
+ do {
+ t0 = vld1_u8(src); // a0 a1 a2 a3 a4 a5 a6 a7
+ s0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+
+ width = w;
+ s = src + 8;
+ d = dst;
+ __builtin_prefetch(dst);
+
+ do {
+ t0 = vld1_u8(s); // a8 a9 a10 a11 a12 a13 a14 a15
+ s7 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ s11 = s0;
+ s0 = s7;
+
+ s1 = vextq_s16(s11, s7, 1); // a1 a2 a3 a4 a5 a6 a7 a8
+ s2 = vextq_s16(s11, s7, 2); // a2 a3 a4 a5 a6 a7 a8 a9
+ s3 = vextq_s16(s11, s7, 3); // a3 a4 a5 a6 a7 a8 a9 a10
+ s4 = vextq_s16(s11, s7, 4); // a4 a5 a6 a7 a8 a9 a10 a11
+ s5 = vextq_s16(s11, s7, 5); // a5 a6 a7 a8 a9 a10 a11 a12
+ s6 = vextq_s16(s11, s7, 6); // a6 a7 a8 a9 a10 a11 a12 a13
+ s7 = vextq_s16(s11, s7, 7); // a7 a8 a9 a10 a11 a12 a13 a14
+
+ t0 = convolve8_horiz_8x8(s11, s1, s2, s3, s4, s5, s6, s7, x_filter,
+ shift_round_0, shift_by_bits);
+ vst1_u8(d, t0);
+
+ s += 8;
+ d += 8;
+ width -= 8;
+ } while (width > 0);
+ src += src_stride;
+ dst += dst_stride;
+ h -= 1;
+ } while (h > 0);
+#endif
+ }
+#if defined(__aarch64__)
+ }
+#endif
+}
+
+void av1_convolve_y_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst,
+ int dst_stride, int w, int h,
+ const InterpFilterParams *filter_params_x,
+ const InterpFilterParams *filter_params_y,
+ const int subpel_x_q4, const int subpel_y_q4,
+ ConvolveParams *conv_params) {
+ const int vert_offset = filter_params_y->taps / 2 - 1;
+
+ src -= vert_offset * src_stride;
+
+ (void)filter_params_x;
+ (void)subpel_x_q4;
+ (void)conv_params;
+
+ assert(conv_params->round_0 <= FILTER_BITS);
+ assert(((conv_params->round_0 + conv_params->round_1) <= (FILTER_BITS + 1)) ||
+ ((conv_params->round_0 + conv_params->round_1) == (2 * FILTER_BITS)));
+
+ const int16_t *y_filter = av1_get_interp_filter_subpel_kernel(
+ filter_params_y, subpel_y_q4 & SUBPEL_MASK);
+
+ if (w <= 4) {
+ uint8x8_t d01;
+ int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, d0;
+#if defined(__aarch64__)
+ uint8x8_t d23;
+ int16x4_t s8, s9, s10, d1, d2, d3;
+#endif
+ s0 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src))));
+ src += src_stride;
+ s1 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src))));
+ src += src_stride;
+ s2 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src))));
+ src += src_stride;
+ s3 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src))));
+ src += src_stride;
+ s4 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src))));
+ src += src_stride;
+ s5 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src))));
+ src += src_stride;
+ s6 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src))));
+ src += src_stride;
+
+ do {
+ s7 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src))));
+ src += src_stride;
+#if defined(__aarch64__)
+ s8 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src))));
+ src += src_stride;
+ s9 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src))));
+ src += src_stride;
+ s10 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src))));
+ src += src_stride;
+
+ __builtin_prefetch(dst + 0 * dst_stride);
+ __builtin_prefetch(dst + 1 * dst_stride);
+ __builtin_prefetch(dst + 2 * dst_stride);
+ __builtin_prefetch(dst + 3 * dst_stride);
+ __builtin_prefetch(src + 0 * src_stride);
+ __builtin_prefetch(src + 1 * src_stride);
+ __builtin_prefetch(src + 2 * src_stride);
+ __builtin_prefetch(src + 3 * src_stride);
+ d0 = convolve8_4x4(s0, s1, s2, s3, s4, s5, s6, s7, y_filter);
+ d1 = convolve8_4x4(s1, s2, s3, s4, s5, s6, s7, s8, y_filter);
+ d2 = convolve8_4x4(s2, s3, s4, s5, s6, s7, s8, s9, y_filter);
+ d3 = convolve8_4x4(s3, s4, s5, s6, s7, s8, s9, s10, y_filter);
+
+ d01 = vqrshrun_n_s16(vcombine_s16(d0, d1), FILTER_BITS);
+ d23 = vqrshrun_n_s16(vcombine_s16(d2, d3), FILTER_BITS);
+ if ((w == 4) && (h != 2)) {
+ vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d01),
+ 0); // 00 01 02 03
+ dst += dst_stride;
+ vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d01),
+ 1); // 10 11 12 13
+ dst += dst_stride;
+ vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d23),
+ 0); // 20 21 22 23
+ dst += dst_stride;
+ vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d23),
+ 1); // 30 31 32 33
+ dst += dst_stride;
+ } else if ((w == 4) && (h == 2)) {
+ vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d01),
+ 0); // 00 01 02 03
+ dst += dst_stride;
+ vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d01),
+ 1); // 10 11 12 13
+ dst += dst_stride;
+ } else if ((w == 2) && (h != 2)) {
+ vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(d01), 0); // 00 01
+ dst += dst_stride;
+ vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(d01), 2); // 10 11
+ dst += dst_stride;
+ vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(d23), 0); // 20 21
+ dst += dst_stride;
+ vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(d23), 2); // 30 31
+ dst += dst_stride;
+ } else if ((w == 2) && (h == 2)) {
+ vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(d01), 0); // 00 01
+ dst += dst_stride;
+ vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(d01), 2); // 10 11
+ dst += dst_stride;
+ }
+ s0 = s4;
+ s1 = s5;
+ s2 = s6;
+ s3 = s7;
+ s4 = s8;
+ s5 = s9;
+ s6 = s10;
+ h -= 4;
+#else
+ __builtin_prefetch(dst + 0 * dst_stride);
+ __builtin_prefetch(src + 0 * src_stride);
+
+ d0 = convolve8_4x4(s0, s1, s2, s3, s4, s5, s6, s7, y_filter);
+
+ d01 = vqrshrun_n_s16(vcombine_s16(d0, d0), FILTER_BITS);
+
+ if (w == 4) {
+ vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d01), 0);
+ dst += dst_stride;
+ } else if (w == 2) {
+ vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(d01), 0);
+ dst += dst_stride;
+ }
+ s0 = s1;
+ s1 = s2;
+ s2 = s3;
+ s3 = s4;
+ s4 = s5;
+ s5 = s6;
+ s6 = s7;
+ h -= 1;
+#endif
+ } while (h > 0);
+ } else {
+ int height;
+ const uint8_t *s;
+ uint8_t *d;
+ uint8x8_t t0;
+ int16x8_t s0, s1, s2, s3, s4, s5, s6, s7;
+#if defined(__aarch64__)
+ uint8x8_t t1, t2, t3;
+ int16x8_t s8, s9, s10;
+#endif
+ do {
+ __builtin_prefetch(src + 0 * src_stride);
+ __builtin_prefetch(src + 1 * src_stride);
+ __builtin_prefetch(src + 2 * src_stride);
+ __builtin_prefetch(src + 3 * src_stride);
+ __builtin_prefetch(src + 4 * src_stride);
+ __builtin_prefetch(src + 5 * src_stride);
+ __builtin_prefetch(src + 6 * src_stride);
+ s = src;
+ s0 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s)));
+ s += src_stride;
+ s1 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s)));
+ s += src_stride;
+ s2 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s)));
+ s += src_stride;
+ s3 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s)));
+ s += src_stride;
+ s4 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s)));
+ s += src_stride;
+ s5 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s)));
+ s += src_stride;
+ s6 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s)));
+ s += src_stride;
+ d = dst;
+ height = h;
+
+ do {
+ s7 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s)));
+ s += src_stride;
+#if defined(__aarch64__)
+ s8 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s)));
+ s += src_stride;
+ s9 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s)));
+ s += src_stride;
+ s10 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s)));
+ s += src_stride;
+
+ __builtin_prefetch(d + 0 * dst_stride);
+ __builtin_prefetch(d + 1 * dst_stride);
+ __builtin_prefetch(d + 2 * dst_stride);
+ __builtin_prefetch(d + 3 * dst_stride);
+ __builtin_prefetch(s + 0 * src_stride);
+ __builtin_prefetch(s + 1 * src_stride);
+ __builtin_prefetch(s + 2 * src_stride);
+ __builtin_prefetch(s + 3 * src_stride);
+ t0 = convolve8_vert_8x4(s0, s1, s2, s3, s4, s5, s6, s7, y_filter);
+ t1 = convolve8_vert_8x4(s1, s2, s3, s4, s5, s6, s7, s8, y_filter);
+ t2 = convolve8_vert_8x4(s2, s3, s4, s5, s6, s7, s8, s9, y_filter);
+ t3 = convolve8_vert_8x4(s3, s4, s5, s6, s7, s8, s9, s10, y_filter);
+ if (h != 2) {
+ vst1_u8(d, t0);
+ d += dst_stride;
+ vst1_u8(d, t1);
+ d += dst_stride;
+ vst1_u8(d, t2);
+ d += dst_stride;
+ vst1_u8(d, t3);
+ d += dst_stride;
+ } else {
+ vst1_u8(d, t0);
+ d += dst_stride;
+ vst1_u8(d, t1);
+ d += dst_stride;
+ }
+ s0 = s4;
+ s1 = s5;
+ s2 = s6;
+ s3 = s7;
+ s4 = s8;
+ s5 = s9;
+ s6 = s10;
+ height -= 4;
+#else
+ __builtin_prefetch(d);
+ __builtin_prefetch(s);
+
+ t0 = convolve8_vert_8x4(s0, s1, s2, s3, s4, s5, s6, s7, y_filter);
+
+ vst1_u8(d, t0);
+ d += dst_stride;
+
+ s0 = s1;
+ s1 = s2;
+ s2 = s3;
+ s3 = s4;
+ s4 = s5;
+ s5 = s6;
+ s6 = s7;
+ height -= 1;
+#endif
+ } while (height > 0);
+ src += 8;
+ dst += 8;
+ w -= 8;
+ } while (w > 0);
+ }
+}
+
+void av1_convolve_2d_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst,
+ int dst_stride, int w, int h,
+ const InterpFilterParams *filter_params_x,
+ const InterpFilterParams *filter_params_y,
+ const int subpel_x_q4, const int subpel_y_q4,
+ ConvolveParams *conv_params) {
+ int im_dst_stride;
+ int width, height;
+ uint8x8_t t0;
+#if defined(__aarch64__)
+ uint8x8_t t1, t2, t3, t4, t5, t6, t7;
+#endif
+
+ DECLARE_ALIGNED(16, int16_t,
+ im_block[(MAX_SB_SIZE + HORIZ_EXTRA_ROWS) * MAX_SB_SIZE]);
+
+ const int bd = 8;
+ const int im_h = h + filter_params_y->taps - 1;
+ const int im_stride = MAX_SB_SIZE;
+ const int vert_offset = filter_params_y->taps / 2 - 1;
+ const int horiz_offset = filter_params_x->taps / 2 - 1;
+
+ const uint8_t *src_ptr = src - vert_offset * src_stride - horiz_offset;
+ const uint8_t *s;
+ int16_t *dst_ptr;
+
+ dst_ptr = im_block;
+ im_dst_stride = im_stride;
+ height = im_h;
+ width = w;
+
+ const int16_t round_bits =
+ FILTER_BITS * 2 - conv_params->round_0 - conv_params->round_1;
+ const int16x8_t vec_round_bits = vdupq_n_s16(-round_bits);
+ const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0;
+ const int16_t *x_filter = av1_get_interp_filter_subpel_kernel(
+ filter_params_x, subpel_x_q4 & SUBPEL_MASK);
+
+ int16_t x_filter_tmp[8];
+ int16x8_t filter_x_coef = vld1q_s16(x_filter);
+
+ // filter coeffs are even, so downshifting by 1 to reduce intermediate
+ // precision requirements.
+ filter_x_coef = vshrq_n_s16(filter_x_coef, 1);
+ vst1q_s16(&x_filter_tmp[0], filter_x_coef);
+
+ assert(conv_params->round_0 > 0);
+
+ if (w <= 4) {
+ int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, d0;
+#if defined(__aarch64__)
+ int16x4_t s8, s9, s10, d1, d2, d3;
+#endif
+
+ const int16x4_t horiz_const = vdup_n_s16((1 << (bd + FILTER_BITS - 2)));
+ const int16x4_t shift_round_0 = vdup_n_s16(-(conv_params->round_0 - 1));
+
+ do {
+ s = src_ptr;
+
+#if defined(__aarch64__)
+ __builtin_prefetch(s + 0 * src_stride);
+ __builtin_prefetch(s + 1 * src_stride);
+ __builtin_prefetch(s + 2 * src_stride);
+ __builtin_prefetch(s + 3 * src_stride);
+
+ load_u8_8x4(s, src_stride, &t0, &t1, &t2, &t3);
+ transpose_u8_8x4(&t0, &t1, &t2, &t3);
+
+ s0 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0)));
+ s1 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1)));
+ s2 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2)));
+ s3 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3)));
+ s4 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t0)));
+ s5 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t1)));
+ s6 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t2)));
+
+ __builtin_prefetch(dst_ptr + 0 * im_dst_stride);
+ __builtin_prefetch(dst_ptr + 1 * im_dst_stride);
+ __builtin_prefetch(dst_ptr + 2 * im_dst_stride);
+ __builtin_prefetch(dst_ptr + 3 * im_dst_stride);
+ s += 7;
+
+ load_u8_8x4(s, src_stride, &t0, &t1, &t2, &t3);
+ transpose_u8_8x4(&t0, &t1, &t2, &t3);
+
+ s7 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0)));
+ s8 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1)));
+ s9 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2)));
+ s10 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3)));
+
+ d0 = convolve8_4x4_s16(s0, s1, s2, s3, s4, s5, s6, s7, x_filter_tmp,
+ horiz_const, shift_round_0);
+ d1 = convolve8_4x4_s16(s1, s2, s3, s4, s5, s6, s7, s8, x_filter_tmp,
+ horiz_const, shift_round_0);
+ d2 = convolve8_4x4_s16(s2, s3, s4, s5, s6, s7, s8, s9, x_filter_tmp,
+ horiz_const, shift_round_0);
+ d3 = convolve8_4x4_s16(s3, s4, s5, s6, s7, s8, s9, s10, x_filter_tmp,
+ horiz_const, shift_round_0);
+
+ transpose_s16_4x4d(&d0, &d1, &d2, &d3);
+ if (w == 4) {
+ vst1_s16((dst_ptr + 0 * im_dst_stride), d0);
+ vst1_s16((dst_ptr + 1 * im_dst_stride), d1);
+ vst1_s16((dst_ptr + 2 * im_dst_stride), d2);
+ vst1_s16((dst_ptr + 3 * im_dst_stride), d3);
+ } else if (w == 2) {
+ vst1_lane_u32((uint32_t *)(dst_ptr + 0 * im_dst_stride),
+ vreinterpret_u32_s16(d0), 0);
+ vst1_lane_u32((uint32_t *)(dst_ptr + 1 * im_dst_stride),
+ vreinterpret_u32_s16(d1), 0);
+ vst1_lane_u32((uint32_t *)(dst_ptr + 2 * im_dst_stride),
+ vreinterpret_u32_s16(d2), 0);
+ vst1_lane_u32((uint32_t *)(dst_ptr + 3 * im_dst_stride),
+ vreinterpret_u32_s16(d3), 0);
+ }
+ src_ptr += 4 * src_stride;
+ dst_ptr += 4 * im_dst_stride;
+ height -= 4;
+#else
+ int16x8_t tt0;
+
+ __builtin_prefetch(s);
+
+ t0 = vld1_u8(s); // a0 a1 a2 a3 a4 a5 a6 a7
+ tt0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ s0 = vget_low_s16(tt0);
+ s4 = vget_high_s16(tt0);
+
+ __builtin_prefetch(dst_ptr);
+ s += 8;
+
+ t0 = vld1_u8(s); // a8 a9 a10 a11 a12 a13 a14 a15
+ s7 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0)));
+
+ s1 = vext_s16(s0, s4, 1); // a1 a2 a3 a4
+ s2 = vext_s16(s0, s4, 2); // a2 a3 a4 a5
+ s3 = vext_s16(s0, s4, 3); // a3 a4 a5 a6
+ s5 = vext_s16(s4, s7, 1); // a5 a6 a7 a8
+ s6 = vext_s16(s4, s7, 2); // a6 a7 a8 a9
+ s7 = vext_s16(s4, s7, 3); // a7 a8 a9 a10
+
+ d0 = convolve8_4x4_s16(s0, s1, s2, s3, s4, s5, s6, s7, x_filter_tmp,
+ horiz_const, shift_round_0);
+
+ if (w == 4) {
+ vst1_s16(dst_ptr, d0);
+ dst_ptr += im_dst_stride;
+ } else if (w == 2) {
+ vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_s16(d0), 0);
+ dst_ptr += im_dst_stride;
+ }
+
+ src_ptr += src_stride;
+ height -= 1;
+#endif
+ } while (height > 0);
+ } else {
+ int16_t *d_tmp;
+ int16x8_t s0, s1, s2, s3, s4, s5, s6, s7, res0;
+#if defined(__aarch64__)
+ int16x8_t s8, s9, s10, res1, res2, res3, res4, res5, res6, res7;
+ int16x8_t s11, s12, s13, s14;
+#endif
+
+ const int16x8_t horiz_const = vdupq_n_s16((1 << (bd + FILTER_BITS - 2)));
+ const int16x8_t shift_round_0 = vdupq_n_s16(-(conv_params->round_0 - 1));
+
+#if defined(__aarch64__)
+ do {
+ __builtin_prefetch(src_ptr + 0 * src_stride);
+ __builtin_prefetch(src_ptr + 1 * src_stride);
+ __builtin_prefetch(src_ptr + 2 * src_stride);
+ __builtin_prefetch(src_ptr + 3 * src_stride);
+ __builtin_prefetch(src_ptr + 4 * src_stride);
+ __builtin_prefetch(src_ptr + 5 * src_stride);
+ __builtin_prefetch(src_ptr + 6 * src_stride);
+ __builtin_prefetch(src_ptr + 7 * src_stride);
+
+ load_u8_8x8(src_ptr, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+
+ transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+
+ s0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ s1 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ s2 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ s3 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ s4 = vreinterpretq_s16_u16(vmovl_u8(t4));
+ s5 = vreinterpretq_s16_u16(vmovl_u8(t5));
+ s6 = vreinterpretq_s16_u16(vmovl_u8(t6));
+
+ width = w;
+ s = src_ptr + 7;
+ d_tmp = dst_ptr;
+
+ __builtin_prefetch(dst_ptr + 0 * im_dst_stride);
+ __builtin_prefetch(dst_ptr + 1 * im_dst_stride);
+ __builtin_prefetch(dst_ptr + 2 * im_dst_stride);
+ __builtin_prefetch(dst_ptr + 3 * im_dst_stride);
+ __builtin_prefetch(dst_ptr + 4 * im_dst_stride);
+ __builtin_prefetch(dst_ptr + 5 * im_dst_stride);
+ __builtin_prefetch(dst_ptr + 6 * im_dst_stride);
+ __builtin_prefetch(dst_ptr + 7 * im_dst_stride);
+
+ do {
+ load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+
+ transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+
+ s7 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ s8 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ s9 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ s10 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ s11 = vreinterpretq_s16_u16(vmovl_u8(t4));
+ s12 = vreinterpretq_s16_u16(vmovl_u8(t5));
+ s13 = vreinterpretq_s16_u16(vmovl_u8(t6));
+ s14 = vreinterpretq_s16_u16(vmovl_u8(t7));
+
+ res0 = convolve8_8x8_s16(s0, s1, s2, s3, s4, s5, s6, s7, x_filter_tmp,
+ horiz_const, shift_round_0);
+ res1 = convolve8_8x8_s16(s1, s2, s3, s4, s5, s6, s7, s8, x_filter_tmp,
+ horiz_const, shift_round_0);
+ res2 = convolve8_8x8_s16(s2, s3, s4, s5, s6, s7, s8, s9, x_filter_tmp,
+ horiz_const, shift_round_0);
+ res3 = convolve8_8x8_s16(s3, s4, s5, s6, s7, s8, s9, s10, x_filter_tmp,
+ horiz_const, shift_round_0);
+ res4 = convolve8_8x8_s16(s4, s5, s6, s7, s8, s9, s10, s11, x_filter_tmp,
+ horiz_const, shift_round_0);
+ res5 = convolve8_8x8_s16(s5, s6, s7, s8, s9, s10, s11, s12,
+ x_filter_tmp, horiz_const, shift_round_0);
+ res6 = convolve8_8x8_s16(s6, s7, s8, s9, s10, s11, s12, s13,
+ x_filter_tmp, horiz_const, shift_round_0);
+ res7 = convolve8_8x8_s16(s7, s8, s9, s10, s11, s12, s13, s14,
+ x_filter_tmp, horiz_const, shift_round_0);
+
+ transpose_s16_8x8(&res0, &res1, &res2, &res3, &res4, &res5, &res6,
+ &res7);
+
+ store_s16_8x8(d_tmp, im_dst_stride, res0, res1, res2, res3, res4, res5,
+ res6, res7);
+
+ s0 = s8;
+ s1 = s9;
+ s2 = s10;
+ s3 = s11;
+ s4 = s12;
+ s5 = s13;
+ s6 = s14;
+ s += 8;
+ d_tmp += 8;
+ width -= 8;
+ } while (width > 0);
+ src_ptr += 8 * src_stride;
+ dst_ptr += 8 * im_dst_stride;
+ height -= 8;
+ } while (height > 0);
+#else
+ do {
+ t0 = vld1_u8(src_ptr);
+ s0 = vreinterpretq_s16_u16(vmovl_u8(t0)); // a0 a1 a2 a3 a4 a5 a6 a7
+
+ width = w;
+ s = src_ptr + 8;
+ d_tmp = dst_ptr;
+
+ __builtin_prefetch(dst_ptr);
+
+ do {
+ t0 = vld1_u8(s); // a8 a9 a10 a11 a12 a13 a14 a15
+ s7 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ int16x8_t sum = s0;
+ s0 = s7;
+
+ s1 = vextq_s16(sum, s7, 1); // a1 a2 a3 a4 a5 a6 a7 a8
+ s2 = vextq_s16(sum, s7, 2); // a2 a3 a4 a5 a6 a7 a8 a9
+ s3 = vextq_s16(sum, s7, 3); // a3 a4 a5 a6 a7 a8 a9 a10
+ s4 = vextq_s16(sum, s7, 4); // a4 a5 a6 a7 a8 a9 a10 a11
+ s5 = vextq_s16(sum, s7, 5); // a5 a6 a7 a8 a9 a10 a11 a12
+ s6 = vextq_s16(sum, s7, 6); // a6 a7 a8 a9 a10 a11 a12 a13
+ s7 = vextq_s16(sum, s7, 7); // a7 a8 a9 a10 a11 a12 a13 a14
+
+ res0 = convolve8_8x8_s16(sum, s1, s2, s3, s4, s5, s6, s7, x_filter_tmp,
+ horiz_const, shift_round_0);
+
+ vst1q_s16(d_tmp, res0);
+
+ s += 8;
+ d_tmp += 8;
+ width -= 8;
+ } while (width > 0);
+ src_ptr += src_stride;
+ dst_ptr += im_dst_stride;
+ height -= 1;
+ } while (height > 0);
+#endif
+ }
+
+ // vertical
+ {
+ uint8_t *dst_u8_ptr, *d_u8;
+ int16_t *v_src_ptr, *v_s;
+
+ const int32_t sub_const = (1 << (offset_bits - conv_params->round_1)) +
+ (1 << (offset_bits - conv_params->round_1 - 1));
+ const int16_t *y_filter = av1_get_interp_filter_subpel_kernel(
+ filter_params_y, subpel_y_q4 & SUBPEL_MASK);
+
+ const int32x4_t round_shift_vec = vdupq_n_s32(-(conv_params->round_1));
+ const int32x4_t offset_const = vdupq_n_s32(1 << offset_bits);
+ const int32x4_t sub_const_vec = vdupq_n_s32(sub_const);
+
+ src_stride = im_stride;
+ v_src_ptr = im_block;
+ dst_u8_ptr = dst;
+
+ height = h;
+ width = w;
+
+ if (width <= 4) {
+ int16x4_t s0, s1, s2, s3, s4, s5, s6, s7;
+ uint16x4_t d0;
+ uint16x8_t dd0;
+ uint8x8_t d01;
+
+#if defined(__aarch64__)
+ int16x4_t s8, s9, s10;
+ uint16x4_t d1, d2, d3;
+ uint16x8_t dd1;
+ uint8x8_t d23;
+#endif
+
+ d_u8 = dst_u8_ptr;
+ v_s = v_src_ptr;
+
+ __builtin_prefetch(v_s + 0 * im_stride);
+ __builtin_prefetch(v_s + 1 * im_stride);
+ __builtin_prefetch(v_s + 2 * im_stride);
+ __builtin_prefetch(v_s + 3 * im_stride);
+ __builtin_prefetch(v_s + 4 * im_stride);
+ __builtin_prefetch(v_s + 5 * im_stride);
+ __builtin_prefetch(v_s + 6 * im_stride);
+ __builtin_prefetch(v_s + 7 * im_stride);
+
+ load_s16_4x8(v_s, im_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7);
+ v_s += (7 * im_stride);
+
+ do {
+#if defined(__aarch64__)
+ load_s16_4x4(v_s, im_stride, &s7, &s8, &s9, &s10);
+ v_s += (im_stride << 2);
+
+ __builtin_prefetch(d_u8 + 0 * dst_stride);
+ __builtin_prefetch(d_u8 + 1 * dst_stride);
+ __builtin_prefetch(d_u8 + 2 * dst_stride);
+ __builtin_prefetch(d_u8 + 3 * dst_stride);
+
+ d0 = convolve8_vert_4x4_s32(s0, s1, s2, s3, s4, s5, s6, s7, y_filter,
+ round_shift_vec, offset_const,
+ sub_const_vec);
+ d1 = convolve8_vert_4x4_s32(s1, s2, s3, s4, s5, s6, s7, s8, y_filter,
+ round_shift_vec, offset_const,
+ sub_const_vec);
+ d2 = convolve8_vert_4x4_s32(s2, s3, s4, s5, s6, s7, s8, s9, y_filter,
+ round_shift_vec, offset_const,
+ sub_const_vec);
+ d3 = convolve8_vert_4x4_s32(s3, s4, s5, s6, s7, s8, s9, s10, y_filter,
+ round_shift_vec, offset_const,
+ sub_const_vec);
+
+ dd0 = vqrshlq_u16(vcombine_u16(d0, d1), vec_round_bits);
+ dd1 = vqrshlq_u16(vcombine_u16(d2, d3), vec_round_bits);
+
+ d01 = vqmovn_u16(dd0);
+ d23 = vqmovn_u16(dd1);
+
+ if ((w == 4) && (h != 2)) {
+ vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(d01),
+ 0); // 00 01 02 03
+ d_u8 += dst_stride;
+ vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(d01),
+ 1); // 10 11 12 13
+ d_u8 += dst_stride;
+ vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(d23),
+ 0); // 20 21 22 23
+ d_u8 += dst_stride;
+ vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(d23),
+ 1); // 30 31 32 33
+ d_u8 += dst_stride;
+ } else if ((w == 2) && (h != 2)) {
+ vst1_lane_u16((uint16_t *)d_u8, vreinterpret_u16_u8(d01),
+ 0); // 00 01
+ d_u8 += dst_stride;
+ vst1_lane_u16((uint16_t *)d_u8, vreinterpret_u16_u8(d01),
+ 2); // 10 11
+ d_u8 += dst_stride;
+ vst1_lane_u16((uint16_t *)d_u8, vreinterpret_u16_u8(d23),
+ 0); // 20 21
+ d_u8 += dst_stride;
+ vst1_lane_u16((uint16_t *)d_u8, vreinterpret_u16_u8(d23),
+ 2); // 30 31
+ d_u8 += dst_stride;
+ } else if ((w == 4) && (h == 2)) {
+ vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(d01),
+ 0); // 00 01 02 03
+ d_u8 += dst_stride;
+ vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(d01),
+ 1); // 10 11 12 13
+ d_u8 += dst_stride;
+ } else if ((w == 2) && (h == 2)) {
+ vst1_lane_u16((uint16_t *)d_u8, vreinterpret_u16_u8(d01),
+ 0); // 00 01
+ d_u8 += dst_stride;
+ vst1_lane_u16((uint16_t *)d_u8, vreinterpret_u16_u8(d01),
+ 2); // 10 11
+ d_u8 += dst_stride;
+ }
+
+ s0 = s4;
+ s1 = s5;
+ s2 = s6;
+ s3 = s7;
+ s4 = s8;
+ s5 = s9;
+ s6 = s10;
+ height -= 4;
+#else
+ s7 = vld1_s16(v_s);
+ v_s += im_stride;
+
+ __builtin_prefetch(d_u8 + 0 * dst_stride);
+
+ d0 = convolve8_vert_4x4_s32(s0, s1, s2, s3, s4, s5, s6, s7, y_filter,
+ round_shift_vec, offset_const,
+ sub_const_vec);
+
+ dd0 = vqrshlq_u16(vcombine_u16(d0, d0), vec_round_bits);
+ d01 = vqmovn_u16(dd0);
+
+ if (w == 4) {
+ vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(d01),
+ 0); // 00 01 02 03
+ d_u8 += dst_stride;
+
+ } else if (w == 2) {
+ vst1_lane_u16((uint16_t *)d_u8, vreinterpret_u16_u8(d01),
+ 0); // 00 01
+ d_u8 += dst_stride;
+ }
+
+ s0 = s1;
+ s1 = s2;
+ s2 = s3;
+ s3 = s4;
+ s4 = s5;
+ s5 = s6;
+ s6 = s7;
+ height -= 1;
+#endif
+ } while (height > 0);
+ } else {
+ // if width is a multiple of 8 & height is a multiple of 4
+ int16x8_t s0, s1, s2, s3, s4, s5, s6, s7;
+ uint8x8_t res0;
+#if defined(__aarch64__)
+ int16x8_t s8, s9, s10;
+ uint8x8_t res1, res2, res3;
+#endif
+
+ do {
+ __builtin_prefetch(v_src_ptr + 0 * im_stride);
+ __builtin_prefetch(v_src_ptr + 1 * im_stride);
+ __builtin_prefetch(v_src_ptr + 2 * im_stride);
+ __builtin_prefetch(v_src_ptr + 3 * im_stride);
+ __builtin_prefetch(v_src_ptr + 4 * im_stride);
+ __builtin_prefetch(v_src_ptr + 5 * im_stride);
+ __builtin_prefetch(v_src_ptr + 6 * im_stride);
+ __builtin_prefetch(v_src_ptr + 7 * im_stride);
+
+ v_s = v_src_ptr;
+ load_s16_8x8(v_s, im_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7);
+ v_s += (7 * im_stride);
+
+ d_u8 = dst_u8_ptr;
+ height = h;
+
+ do {
+#if defined(__aarch64__)
+ load_s16_8x4(v_s, im_stride, &s7, &s8, &s9, &s10);
+ v_s += (im_stride << 2);
+
+ __builtin_prefetch(d_u8 + 4 * dst_stride);
+ __builtin_prefetch(d_u8 + 5 * dst_stride);
+ __builtin_prefetch(d_u8 + 6 * dst_stride);
+ __builtin_prefetch(d_u8 + 7 * dst_stride);
+
+ res0 = convolve8_vert_8x4_s32(s0, s1, s2, s3, s4, s5, s6, s7,
+ y_filter, round_shift_vec, offset_const,
+ sub_const_vec, vec_round_bits);
+ res1 = convolve8_vert_8x4_s32(s1, s2, s3, s4, s5, s6, s7, s8,
+ y_filter, round_shift_vec, offset_const,
+ sub_const_vec, vec_round_bits);
+ res2 = convolve8_vert_8x4_s32(s2, s3, s4, s5, s6, s7, s8, s9,
+ y_filter, round_shift_vec, offset_const,
+ sub_const_vec, vec_round_bits);
+ res3 = convolve8_vert_8x4_s32(s3, s4, s5, s6, s7, s8, s9, s10,
+ y_filter, round_shift_vec, offset_const,
+ sub_const_vec, vec_round_bits);
+
+ if (h != 2) {
+ vst1_u8(d_u8, res0);
+ d_u8 += dst_stride;
+ vst1_u8(d_u8, res1);
+ d_u8 += dst_stride;
+ vst1_u8(d_u8, res2);
+ d_u8 += dst_stride;
+ vst1_u8(d_u8, res3);
+ d_u8 += dst_stride;
+ } else {
+ vst1_u8(d_u8, res0);
+ d_u8 += dst_stride;
+ vst1_u8(d_u8, res1);
+ d_u8 += dst_stride;
+ }
+ s0 = s4;
+ s1 = s5;
+ s2 = s6;
+ s3 = s7;
+ s4 = s8;
+ s5 = s9;
+ s6 = s10;
+ height -= 4;
+#else
+ s7 = vld1q_s16(v_s);
+ v_s += im_stride;
+
+ __builtin_prefetch(d_u8 + 0 * dst_stride);
+
+ res0 = convolve8_vert_8x4_s32(s0, s1, s2, s3, s4, s5, s6, s7,
+ y_filter, round_shift_vec, offset_const,
+ sub_const_vec, vec_round_bits);
+
+ vst1_u8(d_u8, res0);
+ d_u8 += dst_stride;
+
+ s0 = s1;
+ s1 = s2;
+ s2 = s3;
+ s3 = s4;
+ s4 = s5;
+ s5 = s6;
+ s6 = s7;
+ height -= 1;
+#endif
+ } while (height > 0);
+ v_src_ptr += 8;
+ dst_u8_ptr += 8;
+ w -= 8;
+ } while (w > 0);
+ }
+ }
+}
+void av1_convolve_2d_copy_sr_neon(const uint8_t *src, int src_stride,
+ uint8_t *dst, int dst_stride, int w, int h,
+ const InterpFilterParams *filter_params_x,
+ const InterpFilterParams *filter_params_y,
+ const int subpel_x_q4, const int subpel_y_q4,
+ ConvolveParams *conv_params) {
+ (void)filter_params_x;
+ (void)filter_params_y;
+ (void)subpel_x_q4;
+ (void)subpel_y_q4;
+ (void)conv_params;
+
+ const uint8_t *src1;
+ uint8_t *dst1;
+ int y;
+
+ if (!(w & 0x0F)) {
+ for (y = 0; y < h; ++y) {
+ src1 = src;
+ dst1 = dst;
+ for (int x = 0; x < (w >> 4); ++x) {
+ vst1q_u8(dst1, vld1q_u8(src1));
+ src1 += 16;
+ dst1 += 16;
+ }
+ src += src_stride;
+ dst += dst_stride;
+ }
+ } else if (!(w & 0x07)) {
+ for (y = 0; y < h; ++y) {
+ vst1_u8(dst, vld1_u8(src));
+ src += src_stride;
+ dst += dst_stride;
+ }
+ } else if (!(w & 0x03)) {
+ for (y = 0; y < h; ++y) {
+ vst1_lane_u32((uint32_t *)(dst), vreinterpret_u32_u8(vld1_u8(src)), 0);
+ src += src_stride;
+ dst += dst_stride;
+ }
+ } else if (!(w & 0x01)) {
+ for (y = 0; y < h; ++y) {
+ vst1_lane_u16((uint16_t *)(dst), vreinterpret_u16_u8(vld1_u8(src)), 0);
+ src += src_stride;
+ dst += dst_stride;
+ }
+ }
+}